Question on Reentry

[archie_8v]

If my mom comes to US and return, how many days does she have to stay outside the US before she comes back

[ramabalaji]

The untold rule is that if she stays in USA for 6 months, then, she should stay in her home country for more than 6 months.

[orion]

At any time, in the last 12 months, more time need to be spent in the home country than in the US.

And you simply cannot enter for nanny jobs, do not abuse the visa you got.